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[Gregor <gregor.gorjan@xxxxxxxxx>]

well that might be a work arround for Optimus. I on the other hand have GT 730 i just bought. inserted it into the computer, booted to low resolution in nouveau drivers. added Xorg edgers PPA to be able to install nvidia 340. and it should all work (just liek it did for many people with similar card on forums), right? wrong - when i get to desktop all i get is blank screen (can see the VESA splash with dots under Kubuntu before that).
Card is recognised only as Nvidia Corporation Device. there is no chip or anything like that.  Xorg.log shows that GPU failed to initialize. It also can not find "screens"

i've also found this in one of the logs i went through yesterday:
"API mismatch: the client has the version 340.76, but this kernel module has the version 331.113. "

same happens when using version 346.

I can not get to desktop basically ot be able to use nvidia settings.
when driver get's installed nvidia-settings is emtpy. there is no
devices in it. ofcoruse upon reboto there is blank screen so i can't say
what is in it then.

I am also not sure why bb switch and things like that are being
installed if i only have one GPU in the motherboard.

though i should mention that the motherboard has two slots (PCIe (@ 4x)
and AGP). At the moment i am using very old Radeon and foss driver there
works and finds correct screen resolution (1650x1050) well. But it is
crashing when running some games, so i wanted to replace it with nvidia
only to be met by dissapointment and very poor nvidia linux support.

Xorg-edgers ppa gives me 640x840 screen resolution and works very very
slow.

OS: Kubuntu 14.04.1 32bit
Desktop: KDE
Kernel: 3.13.0-46-generic
CPU: Intel Celeron E3300 
GPU: GeForce GT 730 MSI 2 GB (N730-2GD3V1)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu.
https://bugs.launchpad.net/bugs/1362848

Title:
  ubuntu 14.04 after install nvidia binary driver  331.89  black screen
  and freeze

Status in nvidia-graphics-drivers-331 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-340 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-346 package in Ubuntu:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 64bit, after install nvidia binary driver
  331.89 from Additional Drivers application then reboot, it shows black
  screen, no login window, I even can't use ctrl+alt+F2 to switch to
  text mode, then I reboot and go to recovery mode, use 'prime-select
  intel' to switch to intel GPU and reboot, everything is fine, but as
  soon as I switch to nvidia GPU, still same issue.

  OS: Ubuntu 14.04 64bit
  Laptop: HP ENVY 15t Nvidia GeForce GT 740M + Intel HD 4600
  Desktop: Unity
  Kernel: 3.13.0
  CPU: Intel® Core™ i7-4700MQ

  Thanks!

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